The Pokédex number for is #205, which makes this glitch's National Pokédex equivalent Forretress. will usually freeze the player's game when it is encountered using the Mew glitch due to its extremely long cry (its length varies from encounter to encounter; its cry has been sped up but the end of it has never been reached, so it may just be a continuous loop). Its Red/Blue equivalent, ゥ, also freezes the game. On rare occasions, may appear without freezing.

When is sent into battle, they player will not be able to see 's moves, as the battle menu will be covered by a black glitch screen, the same one that covers its front sprite.

When appears in color in Pokémon Stadium, 's sprite will be red and surrounded by a black glitch screen.